The missing slur in b. 10-11 and the slur in b. 12 in FE (→EE1) must be oversights of the engraver. The earlier starting point of the slur in b. 10 in GE is probably a result of the notation of FC, in which the beginning of that slur may suggest such an interpretation (Fontana probably took the bottom arm of the accent/diminuendo in A for the beginning of the slur). In EE2 the slurs were added probably after GE (in b. 10 inaccurately).
See also the next note.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Errors in FE, Inaccuracies in GE
notation: Slurs